diff --git a/app/migrations/20240922.193320_0_re_encrypt_columns.php b/app/migrations/20240922.193320_0_re_encrypt_columns.php
index d769743..d545d90 100644
--- a/app/migrations/20240922.193320_0_re_encrypt_columns.php
+++ b/app/migrations/20240922.193320_0_re_encrypt_columns.php
@@ -68,6 +68,10 @@ public function down(): void
 
     private function convert(string $value): string
     {
+        if ($value === '') {
+            return $value;
+        }
+
         return $this->encrypter->encrypt(
             $this->encrypter->decrypt($value, Cipher::AES256ECB),
             Cipher::AES256GCM,
diff --git a/tests/Feature/Service/Encrypter/AES256ECBTest.php b/tests/Feature/Service/Encrypter/AES256ECBTest.php
new file mode 100644
index 0000000..4e8efa0
--- /dev/null
+++ b/tests/Feature/Service/Encrypter/AES256ECBTest.php
@@ -0,0 +1,39 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tests\Feature\Service\Encrypter;
+
+use App\Service\Encrypter\AES256ECB;
+use Spiral\Encrypter\Exception\EncrypterException;
+use Tests\Fixtures;
+use Tests\TestCase;
+
+class AES256ECBTest extends TestCase
+{
+    public function testEncryptDecrypt(): void
+    {
+        $key = Fixtures::string();
+        $message = Fixtures::string(256);
+
+        $encrypter = new AES256ECB();
+        $encrypted = $encrypter->encrypt($message, $key);
+
+        $this->assertNotEmpty($encrypted);
+        $this->assertNotEquals($message, $encrypted);
+        $this->assertEquals($message, $encrypter->decrypt($encrypted, $key));
+    }
+
+    public function testDecryptError(): void
+    {
+        $key = Fixtures::string();
+        $message = Fixtures::string(256);
+
+        $encrypter = new AES256ECB();
+        $encrypted = $encrypter->encrypt($message, $key);
+
+        $this->expectException(EncrypterException::class);
+
+        $this->assertEquals($message, $encrypter->decrypt($encrypted, $key . Fixtures::string(1)));
+    }
+}
diff --git a/tests/Feature/Service/Encrypter/AES256GCMTest.php b/tests/Feature/Service/Encrypter/AES256GCMTest.php
new file mode 100644
index 0000000..7cbbff0
--- /dev/null
+++ b/tests/Feature/Service/Encrypter/AES256GCMTest.php
@@ -0,0 +1,39 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tests\Feature\Service\Encrypter;
+
+use App\Service\Encrypter\AES256GCM;
+use Spiral\Encrypter\Exception\EncrypterException;
+use Tests\Fixtures;
+use Tests\TestCase;
+
+class AES256GCMTest extends TestCase
+{
+    public function testEncryptDecrypt(): void
+    {
+        $key = Fixtures::string();
+        $message = Fixtures::string(256);
+
+        $encrypter = new AES256GCM();
+        $encrypted = $encrypter->encrypt($message, $key);
+
+        $this->assertNotEmpty($encrypted);
+        $this->assertNotEquals($message, $encrypted);
+        $this->assertEquals($message, $encrypter->decrypt($encrypted, $key));
+    }
+
+    public function testDecryptError(): void
+    {
+        $key = Fixtures::string();
+        $message = Fixtures::string(256);
+
+        $encrypter = new AES256GCM();
+        $encrypted = $encrypter->encrypt($message, $key);
+
+        $this->expectException(EncrypterException::class);
+
+        $this->assertEquals($message, $encrypter->decrypt($encrypted, $key . Fixtures::string(1)));
+    }
+}